Method of manufacturing cups



J. v. WECKBAUGH. METHO'D'QF MANuAcTummcuPs.

I I I APPLICATION FILED SEPT. 14, 1920.

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UNITED sTATEs PATNT OFFICE.l

JQSEPH V. WECKBAUGH, OF NEW YORK, 1\`|'.l Y.

METHOD OF MANUFACTURING CUTS.

Original application fil'ed July 15, 1920, Serial No. 396,342; Divided and this application filed September Be it known that I, JosErH V. 'TEoK-h BAUGH, a citizen of the United States, and' a resident of New York, in the county of New York 'and State of New York, have invented certain new and. useful Improvements in Methods of Manufacturing Cups, of which the following is a specification.

The invention relates to a sanitary drinking cup or container designed for temporary use, and constructed of flexible material such as a suitable grade of paper, the cup being intend'ed, generally, to be discarded after having been used. The construction' admits, also, of the cup being flattened by pressure to occupy a minimum space, and to be suitable for packing and sale.

The invention has for its object to provide a cup 'of this type from a suitable blank as of paper which is folded in an extremely simple manner to provide a liquid-tight container having a large capacity for theI amount of material employed. A further object of the invention consists in providing a substantially rigid mouthpiece 01' lip therefor and the edge of -which shall not-'be sharp, as is the case' usually with cups of the types heretofore produced. The cup, moreover, lends itself readily to manufacture in a sanitary manner. For example, it may be produced from a continuous strip of material which 'will require no handling, the said material, also remaining sealed or enclosed until the actual time of manufacture, and the cup being capable of being manufactured and dispensed entirely by mechanical means. The present application is a continuation in part of my co-pending application Serial No. 297762, filed May 17, 1919 and a division of my co-pending application, Serial No. 396342, filed July 15, 1920.

In the accompanying drawings, which illustrate the inventionp Figures 1 to 4; are diagrammatic views illustrating the different stages in the manufacture of a cup.

Fig. 5 is a perspective view of a completed 1imilar characters of reference designate corresponding parts throughout the several views.

Referring to the drawings, 10 designates a blank composed, for example, of a suitable grade of paper of the required thickness' and stiffness. This blank may be obtained in Serial No. 410,202.

desired lengths as from a continuous strip 11, being cut therefrom along' the line 12 to provide a parallelograml of substantially |eolual sides and generally in the form of a square. One of the corners, for example, the

corner 13, of the blank is turned backwardly along a line 14 perpendicular to the diagonal 15 of the parallelogram, and the blank itself is then turned overl about the said diagonal 15 an axis or folded along same, whereupon the full-length edges 16 and 17 areto each other by means of a suitable adhesive, or may be folded over again, 01' -preferably, are secured by means of a suitable binding strip or metal tape 18 which is bound over same, Fig. '4. This completes the' cup which is thus securely sealed approximately frm bottom to top along the lengthwise edges 16 and 17, in manner indicated, n'oviding,`also, a suitable mouthpiece 19. T e latter is reinforced and stiflened by the backwardly turned corner 13, which serves, also, to hold the cup open as well as to round off that portionof the cup coming in contact with the mouth, thus obviating the sharp edges now found in the paper cups in general use. It is to be noted, in this connection,l that if thepaper for 'manufacturing the cup be taken from a strip supplied in the form of a roll, the inside surface is not exposed to dust and air and also need' not be liandled 'during the process of manufacture, thus insuring a sanitary product.`

In the manufacture of these cups in quantity and by mechanical means, the material for the blank 10 is provided by feeding forward the strip 11 of paper andsimultaneously therewith a strip 18 of binding material such as metal. The latter is preferably. arranged to be fed beneath the paper 11 along one edge thereof and `atv a slightly lesser rate than that of the strip in order-to make use 'of the same feed rolls for both and to effect a saving of metal. `When the requisite'quantity has been fed forward, both paper and metal strip are cut along the line 12 to provide the blank 10. Thereupon, or simultaneously with the feeding of the material, suitable means are caused to defiect the corner 13, preferably at an angle of forty-five degrees to the direction` of travel of the paper, after which the deflected portion is gripped and turned under, and the line impressions made therein. The entire blank is thereupon turned over about the diagona'l 15 as an axis, or folded along said diagona'l. The strip of metal 18, together with the coacting lengthwise edges 16 and 17, is then folded over and secured or bound together.

fhen a metal strip, as the strip 18 is employed, the same-is designedto be clamped over the said edges; and to this end is preferably formed with perforations equally spaced along its median line, the same facilitating the bending ofthe strip in order to clamp the material. Moreover, the edges of said perforations are left rough upon the inner side, thereby insuring a maximum hold on the paper or fiexible material.

1. The method of manufacturing a drinking cup from ablank of paper, which consists in feeding a predetermined length of paper, folding a corner of the paper blank, turning the blank about the diagonal thereof passing through said corner, and securing the lengthwise edges.

2. The method of manufacturing a drinking cup from a continuous strip of paper, which consists in feeding forward a predetermined length of paper and a predetermined length of binder therefor, Cutting said paper and binder, folding a corner of the paper blank, turning the blank about the diagonalv thereof passing through said corner, and securing the lengthwise edges with said binder.

' -3. The-method of manufacturing a drinking cup from a continuous strip of paper, which consists in feeding forward a predetermined length of paper and a predetermined length of bindertherefor, VCutting said paper and binder, defiecting a corner of said paper, folding said corner of the paper blank, turning the blank about the diagonal thereof passing through said corner, and securing the lengthwise edges with said binder.

4. The method of manufacturing a drinking cup from a continuous strip of paper, which consists in feeding forward a predetermined length of paper and simultaneously therewith a predetermined length of binder therefor, simultaneously Cutting said paper and binder, folding a corner of the paper blank, turning the blank about the diagonal thereof passing through said corner, and securing the lengthwise edges with said binder.

5. The method of manufacturing a drinking cup from a continuous strip of paper, which consists in feeding forward a predeterlnined length of paper and a predetermined length of binder therefor, cutting said paper and binder, defiecting the forward corner of said paper substantially at an angle of forty-five degrees to the travel 4of the paper, folding said corner of the paper blank, turning the blank about the diagonal thereof passing through said corner, and securing the lengthwise' edges with said binder.

6. The method of manufacturing a drinking cup from a continuous strip of paper, which consists in feeding forwardm predetermined length of paper and siinultane- .ously a lesser length of binder therefor, cutting said paper and binder, deflecting a corner of said paper, folding said corner of the paper blank, turning the blank about the diagonal thereof passing through said corner, and securing the lengthwise edges by binding same With said binder material. c Signed at .New York, in the county of New York, andl State of New York this 10th day of September, A. D. 1920.

J OSEPH V. WECKBAUGH. 

